Find out about peritoneal dialysis, what life is like while on it and the prognosis for those suffering from this condition. Learn how long a patient can be on peritoneal dialysis while awaiting kidney transplant.
Erasers are made from either natural or synthetic rubber. Natural rubber is produced from latex that is collected from rubber trees. Water is removed from the latex, increasing the rubber content to 60%. Acid is added to the liquid concentrate in order to produce solid sheets of dry rubber.
If you want to write something you can easily erase, write it with a pencil (instead of with a pen). When you color in the bubbles on a standardized test, a #2 pencil is the way to go. Unlike pens, which use ink, pencils have a pointed cylinder of graphite that makes marks on paper. Most pencils are wood with a thin center of graphite, although mechanical pencils are made of metal or plastic and look more like pens.